Hey guys I created bluetooth speaker from my Pi Zero W. Everything works as I want. I implemented my own absolute volume control using d-bus which work as needed. Connection from Iphone work perfectly fine , problem is connecton from Android phone. Android seems to control its media volume and ignore all events from d-bus. Is this related to BT profiles or BT class of Pi ? When I install Blueman, my S8 behave the same way as Iphone but with only Bluez installed it controls only media volume of android device. What does Blueman do that it changes this behaviour ?
Thanks for response and advice